package protocol.objectEcho;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.serialization.ClassResolvers;
import io.netty.handler.codec.serialization.ObjectDecoder;
import io.netty.handler.codec.serialization.ObjectEncoder;
import io.netty.handler.ssl.SslContext;
import io.netty.handler.ssl.SslContextBuilder;
import io.netty.handler.ssl.util.InsecureTrustManagerFactory;

public class ObjectEchoClient {

    static final boolean SSL = System.getProperty("ssl")!=null;
    static final String HOST = System.getProperty("host","127.0.0.1");
    static final int PORT = Integer.parseInt(System.getProperty("port","8007"));
    static final int SIZE = Integer.parseInt(System.getProperty("size","256"))*1024;

    public static void main(String[] args) throws Exception{
        final SslContext sslCtx;

        if (SSL){
            sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
        }else {
            sslCtx = null;
        }

        NioEventLoopGroup group = new NioEventLoopGroup();
        try {
            Bootstrap b = new Bootstrap();

            b.group(group)
                    .channel(NioSocketChannel.class)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        protected void initChannel(SocketChannel ch) throws Exception {
                            ChannelPipeline pipeline = ch.pipeline();
                            if (sslCtx!=null){
                                pipeline.addLast(sslCtx.newHandler(ch.alloc(),HOST,PORT));
                            }
                            pipeline.addLast(
                                    new ObjectEncoder(),
                                    new ObjectDecoder(ClassResolvers.cacheDisabled(null)),
                                    new ObjectEchoClientHandler()
                            );
                        }
                    });
            b.connect(HOST,PORT).sync().channel().closeFuture().sync();
        }finally {
            group.shutdownGracefully();
        }
    }
}
